Rotor shaft press fitting device

Abstract

The utility model relates to the technical field of motor processing, in particular to a rotor shaft press fitting device. A rotor shaft press-fitting device comprises a lower die plate and an upper die plate capable of moving in a lifting mode, a positioning block used for supporting the device is installed in the middle of the lower die plate, a protruding positioning head is arranged at the top end of the positioning block and makes contact with a groove in the inner side of a rotor, a pressing head is fixed to the middle of the upper die plate through a bolt, and vertical first guide rods are fixed to the two sides of the lower die plate. The two ends of the upper die plate are arranged on the first guide rods in a sleeving mode. According to the rotor shaft press-fitting device, the upper die plate drives the pressure head to move downwards, the rotor shaft needing to be assembled is pressed into the rotor placed on the positioning block, the purpose of rapid press-fitting is achieved, and the installation efficiency of the rotor shaft is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor processing technical field especially a rotor shaft press -fitting device. BACKGROUND

[0002] The rotor of motor needs to press in the rotor shaft, and the rotor shaft is combined with the rotor through the press -fitting process, ensures that both form stable mechanical connection, provides rigid support for the transmission torque and bears the mechanical load when the motor operates, and accurate press -fitting cooperation can reduce the vibration and energy loss when the rotor rotates, improves power transmission efficiency, avoids power loss or component wear caused by looseness, so a simple and efficient rotor shaft press -fitting device is needed.

[0003] In view of the above defects, the designer actively researches and innovates, so as to create a rotor shaft press -fitting device, which has more industrial utilization value. INVENTION CONTENTS

[0004] To solve the above technical problems, the utility model aims at providing a rotor shaft press -fitting device.

[0005] The utility model discloses a rotor shaft press -fitting device, including lower mould plate and the liftable and movable upper mould plate, the middle part of lower mould plate is installed with the positioning block for supporting device, the top of positioning block has the protruding positioning head, and the positioning head is contacted with the inside recess of rotor, and the middle part of upper mould plate is fixed with the pressure head through bolt, and the both sides of lower mould plate are fixed with the vertical guide rod one, and the both ends of upper mould plate are set on the guide rod one.

[0006] This rotor shaft press -fitting device is driven by the upper mould plate to move down the pressure head, and the rotor shaft needing assembly is pressed into the rotor placed on the positioning block, realizes the purpose of quick press -fitting, and improves the installation efficiency of rotor shaft.

[0007] Further, the positioning block is fixed on the liftable positioning column, the outer ring of the positioning column is the outward protruding annular support, and a plurality of springs are installed between the annular support and the lower mould plate.

[0008] The positioning column is the liftable structure, plays the purpose of buffering pressure when press -fitting, and guarantees that the rotor does not appear damage when press -fitting.

[0009] Further, the spring has guide rod two fixed with the lower mould plate, the annular support of the positioning column has the through -hole for the guide rod two to pass through, the nut is screwed into the tail end of the guide rod two, and the nut sinks into the countersunk hole on the upper surface of the annular support.

[0010] The spring has guide rod two for guiding, and the positioning column is convenient for lifting and moving, and plays the purpose of press -fitting buffering.

[0011] Further, the lower end of the positioning column is hollow, and the lower die plate is fixed with a limiting block which can be inserted into the lower end of the positioning column.

[0012] The positioning column is sleeved on the limiting block, and the limiting block provides lifting guidance for the movement of the positioning column in the middle part, so that the positioning column is ensured to be lifted in a horizontal state.

[0013] Further, the side wall of the limiting block is provided with a plurality of grooves for positioning the rotor.

[0014] The grooves in the side wall of the limiting block are used for positioning the rotor, and provide limiting for the installation of the rotor, so that the placement angle of the rotor is ensured.

[0015] Through the above scheme, the present application has at least the following advantages:

[0016] 1. Efficient and fast assembly, improving production efficiency;

[0017] Through the linkage design of the upper die plate and the pressure head, combined with the vertical guiding function of the guide rod one, the pressure head is quickly and accurately pressed down, the rotor shaft pressing period is significantly shortened, and the assembly efficiency is greatly improved, which is especially suitable for batch production scenes.

[0018] 2. Buffering pressure protects the workpiece and reduces the risk of damage; the elastic buffering structure of the positioning column and the spring (guide rod two guiding and spring supporting) can dynamically absorb impact force during pressing, avoiding deformation or scratches of the rotor shaft and the rotor due to rigid contact; the nut countersunk head design further limits the spring compression stroke, prevents overloading pressing, and protects the integrity of the workpiece.

[0019] 3. Multi-stage guiding system ensures pressing accuracy;

[0020] The guide rod one guides the vertical movement of the upper die plate to prevent the pressure head from deviating;

[0021] The combination of the guide rod two and the limiting block provides double guidance (peripheral and central guidance) for the positioning column, ensures that the limiting block is always in a horizontal state, avoids eccentric assembly caused by rotor inclination, and improves the coaxiality precision.

[0022] 4. Modular positioning design, suitable for diversified needs;

[0023] The matching design of the positioning head and the rotor groove, combined with the guiding grooves in the side wall of the limiting block, can realize quick positioning and angle correction of the rotor; it can adapt to the pressing needs of rotors of different specifications, and expand the application range of the device.

[0024] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0026] Figure 1 is a structural schematic diagram of the present application;

[0027] Figure 2 is another perspective view of the present application;

[0028] In the figure, 1 is a lower die plate, 2 is an upper die plate, 3 is a positioning block, 4 is a positioning head, 5 is a pressing head, 6 is a guide rod one, 7 is a positioning column, 8 is a spring, 9 is a guide rod two, 10 is a limiting block, and 11 is a groove. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0030] Referring to Figure 1 and Figure 2 , the upper die plate 2 of the rotor shaft press fitting device is fixedly connected with the hydraulic cylinder for press fitting, the upper plate 2 can be lifted and moved under the action of the guide rod one 6, the positioning block 3 installed on the lower die plate 2 is used for rotor positioning, when the press fitting operation is performed, the rotor shaft is placed above the rotor, the upper die plate 2 drives the pressing head 5 to move downward, the pressing head 5 contacts the upper end of the rotor shaft, the lower end of the rotor shaft abuts against the mounting hole on the rotor, and after pressing, the installation is completed.

[0031] The height of the positioning column 7 is adjustable, which is connected and supported between the lower die plate 1 through a plurality of springs 8, the springs 8 provide buffering for the lifting and moving of the positioning column 7, and also provide power for the resetting of the positioning column 7.

[0032] The spring 8 has a guide rod two 9 inside for guiding, the tail end of the guide rod two 9 has a threaded section, the guide rod two 9 can pass through the positioning column 7, and then be screwed into a nut, by adjusting the relative height of the nut, the height of the positioning column 7 can be controlled, so that the height of the positioning column 7 is adjustable, and the assembly of various rotors is satisfied.

[0033] The lower end of the positioning column 7 is hollow, which can be sleeved on the limiting block 10, and the limiting block 10 provides secondary guidance for the positioning column 7.

[0034] The groove 11 on the side wall of the positioning block 3 is used for rotor clamping installation.

[0035] The working principle of the utility model is as follows:

[0036] The upper die plate 2 is fixed with the pressure head 5 through bolts, the middle part of the lower die plate 1 is installed with the positioning block 3, the top end of the positioning block 3 is equipped with the protruding positioning head 4. The positioning head 4 contacts with the rotor inner groove to fix the rotor position. The pressure head 5 is driven to move down by the upper die plate 2, the rotor shaft is pressed into the rotor, and the quick press fitting is realized.

[0037] The positioning block 3 is fixed on the liftable positioning column 7, the outer ring of the positioning column 7 is annular support, and a plurality of springs 8 are installed between the annular support and the lower die plate 1. In the press fitting process, the positioning column 7 can be lifted, the spring 8 plays the role of buffering pressure, and the workpiece damage caused by rigid contact is avoided.

[0038] The spring 8 has the guide rod two 9, the annular support of the positioning column 7 is equipped with the through hole of the guide rod two 9, the tail end of the guide rod two 9 is screwed into the nut, and the nut is sunk into the counterbore hole on the upper surface of the annular support to guide the lifting movement of the positioning column 7. At the same time, the guide rod one 6 is fixed on both sides of the lower die plate 1, and the upper die plate 2 is sleeved on the guide rod one 6, so that the vertical movement of the upper die plate 2 is ensured.

[0039] The lower end of the positioning column 7 is hollow, the lower die plate 1 is fixed with the limiting block 10, the limiting block 10 is inserted into the lower end of the positioning column 7, and the middle lifting guide is provided. The side wall of the positioning block 3 is equipped with the groove 11 for the rotor positioning guide, the rotor positioning guide is ensured, and the rotor placing angle is ensured.

[0040] Finally, the following points should be explained: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0041] Secondly: the utility model discloses the embodiment in the drawing, only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case where there is no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0042] Finally: the preferred embodiments of the utility model are described above, and the utility model is not limited to the above, it should be pointed out that for ordinary skilled persons in the technical field, on the premise of not departing from the technical principles of the present application, a plurality of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. A rotor shaft pressing device, comprising a lower template (1) and an upper template (2) that can be lifted and moved, characterized in that: The lower template (1) is equipped with a positioning block (3) for supporting the device in the middle. The top of the positioning block (3) has a protruding positioning head (4). The positioning head (4) contacts the inner protrusion of the rotor. The upper template (2) is fixed with a pressure head (5) by bolts in the middle. The lower template (1) is fixed with vertical guide rods (6) on both sides. The two ends of the upper template (2) are sleeved on the guide rods (6).

2. The rotor shaft press-fitting device according to claim 1, characterized in that: The positioning block (3) is fixed on the lifting positioning column (7). The outer ring of the positioning column (7) is an outwardly protruding ring support. Multiple springs (8) are installed between the ring support and the lower template (1).

3. The rotor shaft press-fitting device according to claim 2, characterized in that: The spring (8) contains a guide rod (9) that is fixed to the lower template (1). The annular support of the positioning post (7) has a through hole for the guide rod (9) to pass through. A nut is screwed into the tail end of the guide rod (9), and the nut sinks into the countersunk hole on the upper surface of the annular support.

4. The rotor shaft press-fitting device according to claim 2, characterized in that: The lower end of the positioning column (7) is hollow, and a limiting block (10) that can be inserted into the lower end of the positioning column (7) is fixed on the lower template (1).

5. The rotor shaft press-fitting device according to claim 1, characterized in that: The sidewall of the positioning block (3) has multiple grooves (11) for rotor positioning.

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